baber/WOPTO huggingface dataset:
Patent GB-828527-A (GB)
Title: Improvements in and relating to electrical signal interpolating systems
Inventor: WORTHY WILLIAM DIGBY
IPC: G06G7/30
Filed: 1955-03-10
Abstract: 828,527. Electric analogue computing systems. ENGLISH ELECTRIC CO. Ltd. March 8, 1956 [March 10, 1955], No. 15825/59. Divided out of 828,525. Class 37. In an arrangement for generating non- linear interpolated signal functions comprising a potentiometer having two fixed tappings for the application of two fixed voltages, and an intermediate wiper, a voltage varying with the position of the wiper is generated by adding to the wiper voltage a potential developed by a current which is varied by a control device responsive to the wiper potential and injected into the wiper or into a wiper, which is mechanically coupled to the first wiper, of another potentiometer excited at similar points. A current i, Fig. 1, injected into a wiper 21 moving between fixed tappings maintained at voltages V L  and V M  results in a wiper potential having the following value V L (1-t)+V M t+it(1-t), where t is a measure of the distance moved by the wiper, and with i varied with t by corresponding movement of wiper 22 on potentiometer 23, the output from amplifier 25 varies smoothly. The voltage from potentiometer 23 controls a buffer amplifier 24. In a system having circular potentiometers 30, 31, Fig. 2, data V 0 -V N  from a punched tape 36 are read by a head 37 and fed to memory blocks 43-47 through a selector switch 39, V K -V N  being fed to the interpolation potentiometers at the instant shown. Signals v L , v M , for potentiometer 31 which equal - ¢(V M  - 2V L  + V K ) and - ¢( V N  - 2V M  + Vz) respectively are derived from units 48, 49 and the necessary cyclic change of values is arranged. In a further arrangement, Fig. 3, the voltages from wipers 62 control in a unit 70 the current i to the wiper of an auxiliary potentiometer 61 and the potentials across the two wipers are added in a unit 71. The arrangement for applying the fixed potentials V J -V 0  to points 60a-60e from a tape 64 forms the subject-matter of Specification 828,528.
Patent GB-555965-A (GB)
Title: A process of fur cleaning
IPC: C14C7/00
Filed: 1942-11-11
Abstract: 555,965. Cleaning furs. MARCUS, C. Nov. 11, 1942, No. 15976. [Class 138 (i)] Furs are cleaned by preliminary treatment with hardwood sawdust saturated with naphtha, and according to the invention the process is completed by brushing with a stiff brush wetted with a solution of one part carbon tetra chloride in three parts of water. Finally the fur is ironed with an iron covered with brown paper.
Patent GB-453963-A (GB)
Title: Improvements in and relating to decalcomania paper
IPC: B44C1/175
Filed: 1935-06-04
Abstract: 453,963. Decalcomania paper. MACLAURIN, J., 92, Church Street, Ware, Massachusetts, U.S.A. June 4, 1935, No. 16107. [Class 96] [See also Group XVI] A decalcomania paper includes a starch and/or dextrin adhesive, and a waterleaf backing either or both having a distinctive colour, as a check on authenticity, from dye &c. which does not decrease the water-absorbency of the paper.
Patent GB-1066113-A (GB)
Title: Improved catalyst
Inventor: HAMBLING JAMES KEITH
IPC: B01J21/00
Filed: 1965-04-14
Abstract: Ethylene, propylene and the butenes are dimerized or codimerized by contacting feed olefine(s) with a catalyst comprising metallic sodium dispersed on an anhydrous potassium compound, the catalyst having been pretreated with hydrogen at 50 DEG  to 350 DEG  C.  In examples, propylene yields 4-methyl pentenes-1 and 2, 2-methyl pentene-1, hexenes-1, -2 and -3 and 2-methyl pentene-2.ALSO:Polymerisation catalysts comprising a dispersion of metallic Na on an anlydeous potassium compound are pretreated before use with hydrogen at 50 to 350 DEG C.  Preferred as anlydrous K compound is K2CO3 but also mentioned are K2SO4, K2SiO3 and KCl.  The Na may be mounted on 1/8 th inch pellets of K2CO3.
Patent GB-529494-A (GB)
Title: Improvements relating to wood and like sawing machines
IPC: B27B25/02
Filed: 1939-06-02
Abstract: 529,494. Sawing. NEALE, E. W., and HANDLEY, A. H. June 2, 1939, No. 16234. [Class 145 (ii)] In a sawing machine using a band saw b, the stock x, is carried by a jig t having a flange s shaped to correspond to the configuration to be imparted to the pieces cut off from the stock, driving rollers c, d, rotated by an endless chain h and engaging opposite sides of the flange being relatively movable, and held by a weight or spring u in driving connection with the jig. Three rollers may be provided two on one side of the flange s and one on the other, the former being carried by a spring loaded support n which holds all rollers in engagement with the jig. The rollers are carried by spindles f, g, which carry sprockets g, p, engaged by a chain h driven from a sprocket i coupled to a motor m.
Patent GB-807966-A (GB)
Title: Method of adjusting exact electrode spacings in electric discharge tubes
IPC: H01J19/42
Filed: 1956-05-25
Abstract: 807,966. Discharge tubes. STANDARD TELEPHONES & CABLES Ltd. May 25, 1956 [May 26, 1955], No. 16255/56. Class 39(1). In a discharge tube electrode spacings are adjusted by shaping or arranging system elements e.g. electrodes, intermediate elements or their supports to form inclined planes and the adjustment is effected by moving the elements on these planes thereafter fixing them in position by welding, soldering, clamping, &c. In Fig. 3 the cathode 10 has wedge shaped extensions 11 cooperating with insulated parts 8 and 9, resilient members 15 being provided to keep the wedges 11 in contact with parts 8 and 9 during the adjustment. Finer adjustment can be obtained by moving one wedgeshaped member against a similarly shaped member. In Fig. 9 a rotary motion is used to adjust the position of member 28 relative to the member 27, each member having slanting flaps 29, 30, respectively to form the inclined planes.
Patent GB-404632-A (GB)
Title: Improvements in rotary drums for heating, drying and the like
IPC: F26B11/02
Filed: 1932-06-09
Abstract: <PICT:0404632/III/1> <PICT:0404632/III/2> Gases are brought into contact with solids for such purposes as drying, heating, cooling, filtering or effecting chemical changes in a double-walled rotary drum, the space between the walls being divided into a plurality of longitudinal passages.  The gaseous fluids are introduced directly into the interior of the drum at a number of points spaced along the length thereof, and are drawn or forced downwardly in a radial direction through the charge of solid material, the gases being discharged through those passages which are momentarily situated beneath the charge.  In one form, a drum 1 is provided with longitudinal members 1a forming passages 13 which are bounded by laterally extending members 1b constituting the surface for supporting the charge.  Material from a hopper 14 is fed through the stationary head of the machine by a screw 16, and, owing to the conical formation of the supporting surface, is fed along the drum in the rotation thereof, to be discharged into a stationary cylinder 19a.  Gases, which may be heated in apparatus 26, are fed into a pipe 27 provided with slots 29, and are sucked out by a fan 31 provided with a head 32 so arranged that the gases are extracted only through those passages which are covered by the charge.  In another form, a perforated shell is used for supporting the material, and the gases are withdrawn at the material discharge and over a suitable section of a stationary cylinder enclosing the end of the drum.  The drying gas, which may be heated by steam, oil, gas, or waste flue gases, may, after passage through the drum, be reconditioned and recirculated.  The apparatus may be used as a cooler for cement clinker, coke, or roasted nuts.  Liquids may be evaporated by spraying them on to a bed of neutral solid material, whereupon the hot gases are passed through the bed.
Patent GB-1426449-A (GB)
Title: Printed circuit apparatus
IPC: G03B9/58
Filed: 1973-04-05
Abstract: 1426449 Printed circuit apparatus SEIKO KOKI KK 5 April 1973 [6 April 1972] 16321/73 Heading H1R A printed circuit apparatus, e.g. for use in a camera shutter, comprises an insulating support member 10 having on one surface 23 thereof one or more first portions 24 of a metallic layer forming a printed circuit and one or more second portions 30 of the metallic layer which are insulated and distinct from the printed circuit and which second portions constitute mechanical end bearings for shafts 32, 33, 34 or the like, each shaft or the like carrying a rotatable part which is rotatable with respect to the support member 10. The plastics support member 10 and the base-board 11 are spaced apart by fixed pillars 12, 13, and the shafts 32, 33, 34 are rotatably supported between the support member 10 and the base-board 11 and carry associated intermeshing gears. The second portions 30 of the metallic layer are circular and support the shafts, and third portions 31 of the metallic layer are annular and support the pillars. The printed circuit forms at least part of the electronic delay circuit for timing the exposure in a camera.
Patent GB-481587-A (GB)
Title: Improvements in or relating to printers' blankets
IPC: B41N10/04
Filed: 1936-06-11
Abstract: 481,587. Printers' blankets. DEWEY & ALMY, Ltd. (Dewey & Almy Chemical Co.) June 11, 1936, Nos. 16370 and 29068. [Class 100 (ii)] Printers' blankets comprise a body of napped woven textile material' impregnated with rubber derived from aqueous dispersion. Preferably a number of plies of napped woven textile material are impregnated with rubber derived from aqueous dispersion and bonded together to provide a rubber cushioning layer between adjacent plies. The body may consist of a number of plies of single or double napped fabric, e.g. twill, impregnated with rubber latex, pressed together, and vulcanized. A coagulating agent, such as a zinc-ammoniumdouble salt, as described in Specification 361,880, [Group V], may be incorporated in the latex compound, and coagulation effected by heating the impregnated material. Preferably the lower surface of the bottom ply is not napped. Alternatively the impregnated plies may be separately dried and then secured together by a rubber cement. The surface of the blanket may be rendered smooth by vulcanizing between polished sheets, or may be coated with oil-resisting compounds such as polymers of ethylene sulphide or polymerized chloroprene or butadiene, or may be provided with an outer layer of microporous or sponge rubber. The working surface may also be provided with minute indentations or pits, the walls of which are formed by fabric fibres impregnated with rubber. This may be effected by applying to the substantially continuous rubber surface of the blanket, before vulcanizing, a textile sheet impregnated with latex to a degree sufficient to waterproof it, but insufficient to fill its pores. Alternatively, a wire screen or cotton duck may be pressed on to the surface of the blanket having a napped and impregnated upper layer during vulcanization, to impress the indentations in the surface. The working surface may be reinforced by a fibrous substance, such as cotton flock, held by a matrix of rubber deposited from an aqueous dispersion.
Patent GB-610595-A (GB)
Title: Improvements relating to the control of magnetic clutches
IPC: F16D48/06
Filed: 1946-05-29
Abstract: 610,595. Controlling clutches. HUMBER, Ltd., MILLER, A. C., KAMPER, A. M., and BERRY, G. May 29, 1946, No. 16375. [Class 80 (ii)] The engaging voltage applied to a magnetic main clutch driving a variable-speed gear as described in Specification 610,519 is reduced automatically when one or more of the lowspeed ratios is engaged, the clutch being energized by an engine-driven generator, the output of which varies with speed. The higher engine speed necessitated for engagement of the clutch in low speed is produced by the insertion of resistances in the circuit by movement of the gear lever.
Patent GB-712797-A (GB)
Title: Improvements in chairs or other seating structures
IPC: A47C7/32
Filed: 1952-06-30
Abstract: 712,797. Spring upholstery. OSOKOSI UPHOLSTERY (1939), Ltd., and REBAK, A. Feb. 25, 1953 [June 30, 1952], No. 16452/52. Class 52(4) A resilient cushion supporting surface comprises pairs of main springs 1, each pair diverging from their common anchorage points 2 to a point 3 where they connect with the next adjacent pair, the diverging ends of each pair being connected by subsidiary springs 4 enclosing a space 5. Side springs 7 extend between the anchorage points 2. Short subsidiary springs 6 are connected between the points 3 and points other than the centre points of the side springs 7. Springs of non-uniform strength and tension may be used to suit the applied load at different points over the area of the surface.
Patent GB-630743-A (GB)
Title: Improvements in or relating to valve mechanisms for rock drills
IPC: E21B1/30
Filed: 1947-06-23
Abstract: 630,743. Valve-gear for percussive tools. INGERSOLL-RAND CO. June 23, 1947, No. 16557. Convention date, Dec. 14, 1946. [Class 122(ii)] In a fluid actuated rock drill comprising a cylinder, a piston and an exhaust port for the cylinder, a valve chest having a valve chamber, ports and passages for conveying pressure fluid thereto and from the valve chamber to the cylinder, and an oscillatory plate valve for controlling the flow of pressure through the valve chamber, the ports and passages lie at only one end of the valve chamber. The corresponding ports 47, 38 and 48, 39 for conveying fluid to and from the valve chamber 37 are operated simultaneously by the surfaces 42 and 43 respectively of the valve 41 which tilts about the apex 44; the exhaust port 23 in the cylinder is controlled by the piston 24. As shown in Fig. 1, pressure fluid from the supply conduit 31 through ports 33, 49, 47 and 38 forces the piston downward until it uncovers the exhaust port 23 thereby causing a drop in pressure under surface 42 of the valve which, combined with the air compressed beneath the piston and the fluid pressure in chamber 48 acting against surface 43 of the valve, throws the valve. Similar action occurs when the piston uncovers port 23 on its upward stroke. The passages 38 and 39 may vary in size with respect to each other to limit the supply of fluid to one end of the cylinder.
Patent GB-997130-A (GB)
Title: Improvements relating to coolant-circuit arrangements of internal combustion enginesof motor vehicles
IPC: F01P7/16
Filed: 1963-04-26
Abstract: 997,130. Cooling systems for internal combustion engines; ventilating vehicles. M. BEHR, [trading as SUDDUETSCHE RUHLERFABRIK JULIUS FR. BEHR]. April 26, 1963 [April 26, 1962; Jan. 22, 1963], No. 16570/63. Headings F4U and F4V. In the coolant circuit arrangement of the internal combustion engine of a motor vehicle a heat exchanger 5 is arranged in parallel with the main radiator, a blower 16 is arranged to draw fresh air over the exchanger 5, and a thermostat 13 sensitive to coolant temperature is arranged to operate the blower motor 15 and flaps 8 and 12 to control the flow path of air relative to the heat exchanger. The arrangement is such that when the coolant temperature is high the thermostat, through a pneumatic relay, moves the flaps to the dotted positions 8a and 12a and energizes the blower motor so that air is drawn through the heat exchanger 5 and passed to atmosphere, and when the coolant temperature is low the flaps are in their full line positions and the motor 16 is switched off. In the latter position the blower may be switched on manually to supply air to the vehicle interior and the flap 12 may be moved to its position 12a or to any intermediate position by a Bowden cable. On moving the cable in the other direction, the flap 12 is moved to its full line position not by the cable but by a restoring spring only. The spring is not capable of returning the flap 12 against the action of the automatic control if the latter is operating to hold the flap in the position 12a. Fig. 4 shows a combined theremostat and blower switch 13 (14). Rising coolant temperature causes expansion of a wax filling 39, causes movement of a pin 43 against a spring 44 and at a coolant temperature of 96‹ C. causes a buckling plate 47 to close the blower motor switch 14 and place a pipe 50 in communication with the atmosphere through a casing opening 52. The pipe 50 is connected through a pipe 19 (Fig. 2) to a pipe 27 of the relay 17 (Fig. 3). Atmospheric pressure is thus provided on both sides of a diaphragm 26 which assumes its Fig. 3 position in which a rod 35 attached to the diaphragm holds the flaps 8 and 12 in their dotted positions 8a and 12a. When coolant temperature drops below 86‹ C. the buckling plate 47 switches off the motor and closes pipe 50 so that the diaphragm 26 is placed under control of a connection 33 to the inlet manifold of the vehicle engine. The rod 35 is thus withdrawn to move the flaps 8 and 12 to their full line positions. Provision is made for automatically uncoupling the flap 12 from its operating linkage when it is moved by the Bowden cable. In modifications (not shown) there may be provision for manual control of the flap 8 and the flap 12 may, in its ventilating position, reduce the air flow cross-section through the exchanger 5 by half.
Patent GB-578468-A (GB)
Title: Improvements in engine valve gear
IPC: F01L13/00
Filed: 1944-09-01
Abstract: 578,468. Valve gear. ARMSTRONG WHITWORTH & CO. (ENGINEERS), Ltd., Sir W. G., and SMITH, J. J. S. Sept. 1, 1944, No. 16659. [Class 7 (vi)] Two exhaust valves b, c controlling a single port a are disposed in the cylinder head and have concentric stems, the valve b controlling the opening of the port a and the valve c its closing, and the two valves being actuated by separate mechanical means. The valves may be masked and the valve b can enter the masking without making a gas-tight seal on its seat. A single duplex spring d or separate coil or hairpin springs control the valves, which may be actuated by a single cam or separate cams, either or both of which may be adjusted on the camshaft by the engine governor.
Patent GB-457829-A (GB)
Title: Improvements in circuit control arrangements of electro-magnetic switches
IPC: H01H47/00
Filed: 1935-06-08
Abstract: 457,829. Switching systems. OSBORN, H. J., Burnside, Old Kilpatrick, Dumbartonshire, and SHARP, W., 32, Barrington Drive, Glasgow. June 8, 1935. No. 16723. [Class 38 (iv)] [See also Group XXXVII] In a circuit arrangement for operating electric switches of the type described in Specifications 291,494 and 318,950, [both in Class 38 (v)], or other electromagnetic switches with dual circuits as, for example, a " latched-in " contactor, a thermal change-over switch has a movable contact-operating member and means for heating the expansible portion of this member, the current employed to operate the electromagnetic switch being arranged to flow through the moving member of the thermal switch when the controlling circuit is closed and is interrupted by an operating contact of the electromagnetic switch. As shown in Fig. 1, the thermal strip 1 is heated through a transformer 7 causing the contact 3 on the thermal member to engage fixed contact 5. When a controlling pushbutton 9 is depressed a change-over current for the electromagnetic switch flows through the strip 1, contacts 3, 5 and contacts 10 of the electromagnetic switch which changes over and breaks this circuit at contacts 6. The heating circuit is also interrupted at contacts 8 controlled by the electromagnetic switch so that the strip 1 cools and brings contact 4 into engagement with contact 6. Thus the return change-over circuit is prepared through contacts 4, 6 and contacts 11 of the electromagnetic switch and the change-over occurs on a further depression of the pushbutton 9. Instead of a bimetallic strip 1 an expanding rod thermal element may be employed and in another arrangement two or more electromagnetic switch operating in " cascade " may be employed. In a further modification described a latched relay is employed having operating and releasing coils the circuits of which are completed in turn through the thermal element in the manner described.
Patent GB-724614-A (GB)
Title: Improvements relating to radar equipment
IPC: G01S13/526
Filed: 1953-06-17
Abstract: 724,614. Pulse radar. METROPOLITANVICKERS ELECTRICAL CO., Ltd. June 17, 1953 [June 20, 1952], No. 16749/53. Drawings to Specification. Class 40 (7). Relates to pulse radars in which responses due to fixed objects are eliminated by applying the detected echo signal in parallel to a cancellation circuit via two paths having a relative delay equal to the pulse recurrence period or a multiple thereof, the echo signal being obtained by coherent or non-coherent detection. According to the present invention the detected echo signal is frequently modulated onto a carrier before application to the two paths, the outputs from the paths being applied to the cancellation circuit via similar frequency demodulators and amplifiers and limiters being included in both paths to equalize the gain therein. The required relative delay is preferably obtained by a mercury delay line in one path, a compensating attenuator being inserted in the other.
Patent GB-118746-A (GB)
Title: Improvements in Boring or Drilling Machines.
Inventor: DUDGEON HARRY ALLSOP
IPC: B23Q1/72
Filed: 1917-11-17
Abstract: 118,746. Dudgeon, H. A. Nov. 17, 1917. Drilling-machines. - An horizontal drill spindle is carried in an arm pivoted at its lower end so that the drill can be adjusted as regards the work which is carried on a vertically adjustable table. The spindle is supported in an arm f and driven by a belt from the shaft k on which the arm is pivoted. The arm is adjusted by a screwed rod r and a hand-wheel and is slotted at f<4> to receive a clamping-bolt m<1>, the head of which is movable in a T-slot in the table d. The table is carried on a screwed pillar c and is adjusted as regard height by rotating the nut b by means of a hand-wheel.
Patent GB-1048835-A (GB)
Title: Addition products of acrylamide with glycol-mono-ureine
IPC: D06M15/423
Filed: 1963-04-30
Abstract: The invention comprises the mono- and dicarbamido products resulting from the heating of one molecule of glycol-mono-ureine with at least one molecule of acrylamide and the methylol derivatives of the nitrogen atom of the carbamido function and/or the ureine function of said carbamides.  It is probable that the carbamides are of the formulae <FORM:1048835/C2/1> and <FORM:1048835/C2/2> The methylol derivatives may be prepared by reacting the carbamides with formaldehyde, by reaction between glycol-mono-ureine, acrylamide and formaldehyde, or by reaction between urea, glyoxal, acrylamide and formaldehyde; the last two reactions occurring without isolation of the carbamide intermediates.ALSO:Cellulosic textile materials are impregnated with an aqueous solution of a methylol derivative of a mono- or di-carbamide product, which product results from heating one molecule of glycol-mono-ureine with at least one molecule of acrylamide, containing tartaric acid, magnesium chloride or zinc chloride to provide 5 to 10 grams of said methylol derivative per sq. metre of textile material, the material being dried and heated at above 100 DEG C. for up to half-an-hour.  In an example cotton poplin is dressed as above and tests on the dressed fabric indicated a reduction in shrinkage, an increase in crease resistance, an increased resistance to bursting and increased mechanical strength.
Patent GB-255217-A (GB)
Title: Improved press for ties, trousers and the like
IPC: A47G25/72
Filed: 1925-07-02
Abstract: 255,217. Everitt, J. July 2, 1925. Trouser and other garment presses. - A press for neckties, trousers, &c. comprises top and bottom boards a, e. to the former of which is attached one end of a bow spring f against which bears a rod d. One end of the rod passes through a hole in a lug c<2> while the other engages a gap in a second lug c<3>; the lugs c<2>, c<3> are formed integrally with a transverse strap secured to the bottom board.